铝合金电子束焊接技术

Study on electron beam welding for aluminum alloy

铝合金因其良好的性能在航空航天、交通工具、机械制造等领获得了广泛应用,其焊接性限制了铝合金的进一步应用和发展。电子束焊因其熔透性高、接头性能优良等优点成为铝合金焊接的重要方法之一。简述了电子束焊接的基本原理和特点,综述了铝合金电子束焊在工艺、接头组织性能、接头缺陷预测和有限元数值模拟技术等方面的研究工作,展望了铝合金电子束焊接的发展方向,对于今后系统开展铝合金电子束焊接具有一定的参考。

Aluminum alloy is applied widely in aeronantics and astronantics,traffic vehicle and mechanism industry,while the weldability of aluminum alloy restricts its application and development.Compared with other welding methods,electron beam welding possesses such advantages as high fusibility ability,good welding joint in quality,etc.Mechanism and characteristics of electron beam welding are explained.The progress in research on electron beam welding of aluminum alloy is discussed.Based on these general surveys,future research emphasis on electron beam welding of aluminum alloy is suggested.